Download Electro-Voice PA1250T Owner`s manual

OWNER‘S MANUAL
BEDIENUNGSANLEITUNG
MODE D‘EMPLOI
PA1250T
PA2250T
PA2400T
PA2450L
PA4150L
PA SERIES
CONTENTS
ENGLISH
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SERVICE INSTRUCTIONS
DESCRIPTION
Unpacking & Warranty
Installation Notes
FRONT PANEL
Mains Switch
Protect
Limiter
Level Indication
Power
REAR PANEL
Audio Signal Inputs
Level Controls
Mode Switch
High Pass Filter
Loudspeaker Outputs
Mains Fuse
Mains Socket
Voltage Selector
LF CONNECTION CORDS
MAINS OPERATION & RESULTING
TEMPERATURE
NOTES
FRANCAISE
...... 3
...... 3
...... 4
...... 4
...... 4
...... 5
...... 5
...... 5
...... 5
...... 5
...... 5
...... 6
...... 6
...... 6
...... 6
...... 6
...... 7
...... 8
...... 8
...... 8
...... 8
...... 9
...... 11
DEUTSCH
INHALT
WICHTIGE SICHERHEITSHINWEISE
WICHTIGE SERVICEHINWEISE
BESCHREIBUNG
Auspacken & Garantie
Installationshinweise
FRONTSEITE
Netzschalter
Protect
Limiter
Pegelanzeigen
Power
RÜCKSEITE
Signaleingänge
Level Regler
Mode Schalter
Hochpassfilter
Lautsprecherausgänge
Netzsicherung
Netzbuchse
Spannungswahlschalter
NF-VERBINDUNGSKABEL
NETZBETRIEB & WÄRMEENTWICKLUNG
NOTIZEN
...... 12
...... 13
...... 13
...... 14
...... 14
...... 14
...... 15
...... 15
...... 15
...... 15
...... 15
...... 15
...... 16
...... 16
...... 16
...... 16
...... 16
...... 17
...... 18
...... 18
...... 18
...... 18
...... 19
...... 21
TABLE DES MATIÉRES
INSTRUCTIONS DE SÉCURITÉ
IMPORTANTES
INSTRUCTIONS DE RÉPARATION
IMPORTANTES
INTRODUCTION
Déballage et garantie
Remarques concernant l’installation
FACE AVANT
Interrupteur secteur
Protect
Limiteur
Indicateur de niveau
Power
PANNEAU ARRIÈRE
Entrées Signal Audio
Contrôles de niveau
Sélecteur de Mode
Filtre Passe-Haut
Sorties Haut-Parleur
Fusible secteur
Prise secteur
Sélecteur de tension
CORDONS DE CONNEXION AUDIO
ALIMENTATION SECTEUR ET
TEMPÉRATURE RÉSULTANTE
NOTICES
...... 22
...... 23
...... 23
...... 24
...... 24
...... 24
...... 25
...... 25
...... 25
...... 25
...... 25
...... 25
...... 26
...... 26
...... 26
...... 26
...... 26
...... 27
...... 28
...... 28
...... 28
...... 28
...... 29
...... 31
APPENDIX / ANHANG / APPENDICE
TECHNICAL SPECIFICATIONS
BLOCK DIAGRAMM
PA2450L / PA4150L
PA4150L
PA2400T / PA2250T
PA1250T
DIMENSIONS
2
...... 32
...... 33
...... 33
...... 34
...... 35
...... 36
...... 37
IMPORTANT SAFETY INSTRUCTIONS
The lightning flash with arrowhead symbol, within an
equilateral triangle is intended to alert the user to the
presence of uninsulated „dangerous voltage“ within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
The exclamation point within an equilateral triangle
is intended to alert the user to the presence of
important operating and maintance (servicing)
instructions in the literature accompanying the
appliance.
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Do not cover any ventilation openings. Install in accordance with the manufacture’s instructions.
Do not install near heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
Do not defeat the safety purpose of the polarized or the grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an
electrican for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
Only use attachments/accessories specified by the manufacturer.
Unplug this apparatus during lightning storms or when unused for a long period of time.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged
in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
Do not expose this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases,
are placed on the equipment.
To completely disconnect this equipment from the AC Mains, disconnect the power plug from the AC receptacle.
The mains plug of the power supply cord shall remain readily operable.
Management of WEEE (waste electrical and electronic equipment) (applicable in Member States of the
European Union and other European countries with individual national policies on the management of
WEEE) The symbol on the product or on its packaging indicates that this product may not be treated as
regular household waste, but has to be disposed through returning it at a Telex dealer.
IMPORTANT SERVICE INSTRUCTIONS
CAUTION:
1.
2.
3.
4.
5.
6.
7.
8.
These servicing instructions are for use by qualified personnel only. To reduce the risk of
electric shock, do not perform any servicing other than that contained in the Operating
Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.
Security regulations as stated in the EN 60065 (VDE 0860 / IEC 65) and the CSA E65 - 94 have to be obeyed when
servicing the appliance.
Use of a mains separator transformer is mandatory during maintenance while the appliance is opened, needs to be
operated and is connected to the mains.
Switch off the power before retrofitting any extensions, changing the mains voltage or the output voltage.
The minimum distance between parts carrying mains voltage and any accessible metal piece (metal enclosure),
respectively between the mains poles has to be 3 mm and needs to be minded at all times. The minimum distance
between parts carrying mains voltage and any switches or breakers that are not connected to the mains (secondary
parts) has to be 6 mm and needs to be minded at all times.
Replacing special components that are marked in the circuit diagram using the security symbol (Note) is only
permissible when using original parts.
Altering the circuitry without prior consent or advice is not legitimate.
Any work security regulations that are applicable at the location where the appliance is being serviced have to be
strictly obeyed. This applies also to any regulations about the work place itself.
All instructions concerning the handling of MOS - circuits have to be observed.
NOTE:
SAFETY COMPONENT ( MUST BE REPLACED BY ORIGINAL PART )
3
DESCRIPTION
Congratulations on your ElectroVoice PA series power amplifier purchase! The ElectroVoice PA-Series
power amp line combines outstanding audio performance, exceptional reliability and secure operational
safety in a compact 2RU chassis design.
All models in the PA Series provide several protection circuits which not only prevent the power
amplifier itself but also the connected loudspeaker systems from being damaged. These protections
include Dynamic Audio Limiters, Inrush Current Limiter, Short Circuit Protection and Thermal Overload
Protection. All PA-Series power amps feature different hi-pass filters with switch selectable cut-off
frequency to attenuate unwanted low-frequency signals.
Infinitely variable low-noise high performance fans guarantee absolute thermal stability while keeping fan
noise to a minimum. Direct “flow-thru” chassis design allows for a smooth flow of air from front-to-rear,
which allows trouble-free operation even in smaller amp-racks.
Compact high density power supply units with low-leakage toroidal transformers provide extensive
headroom far above the listed power rating. Premium phoenix style screw-lock connectors prevent
accidental disconnection resulting in a more secure connection of audio signal and speaker cables.
All PA series “T” version models are equipped with high performance output transformers also provide
floating outputs for 50V, 70V and 100V installations. These models also provide voltage limiters to
protect the loudspeaker outputs against over-voltage.
Unpacking & Warranty
Carefully open the packaging and take out the power amplifier. Next to the power amplifier itself, the
package also includes this owner’s manual, a mains cord, a warranty certificate, four attachable feet as
well as screwlock connectors for all inputs and outputs. The warranty period is 36 months starting
from the date when receiving the appliance from the dealer. Keep the original invoice, which states
the purchase/delivery date together with the warranty certificate at a safe place.
Installation Notes
First of all, please make sure to check that the voltage selector on the amp’s rear is set to the correct
position matching the installation site’s local mains voltage.
Generally, installing or mounting power amps should be carried out in a way that guarantees continuously
unopposed front-to-rear air circulation. When including an appliance in a closed cabinet or rack shelf
system make sure to provide sufficient ventilation. Leave an air duct of at least 2.5“ x 13“ (up to
the cabinet’s top ventilation louvers) for air circulation between the rear of the power amplifier and
the cabinet’s/rack’s rear wall. Make sure to leave at least 4“ of space above the cabinet or rack
shelf system. Since temperatures inside of a cabinet or rack shelf system can easily rise up to 105 degrees
during operation, carefully considering the environmental temperature maximum values of all other
appliances installed in the same rack shelf system is mandatory (also refer to “Mains Operation &
Resulting Temperature”).
When installing the power amp in a cabinet or rack shelf system, make sure to make use of the
rear mounting facilities to fix the appliance in place and keep the front panel from bending. If
this is not possible, please use mounting-rails instead.
Caution:
For problem-free operation do not exceed the environmental temperature maximum
of 105 Deg. F.
The power amplifier has to be protected against: moisture (dripping or splashing water), direct sunlight,
high temperatures or the direct influence of heat sources, high humidity, extensive dust and vibrations.
Condensation on internal parts may occur after transporting the power amplifier from a cold into a warmer
environment. In that case operation is only permissible after the appliance has gained the new temperature (after approximately one hour). If objects or liquids have intruded the power amp’s enclosure,
disconnect the appliance from the mains immediately and contact an authorised service center for
inspection before continuing to operate the unit.
Do not use any sprays or solvents for cleaning the appliance, because they might severely damage
the surface of the enclosure or lead to dangerous fire hazard.
4
FRONT PANEL
Mains Switch
Use the mains switch to switch the unit’s power on. A soft-start function prevents inrush
current peaks on the mains, additionally preventing the mains line protection switch from
activating during the amp’s power-on operation. Loudspeaker outputs are activated via
relay switching with a delay of approx. 2 seconds, which effectively eliminates eventual
power-on noise.
During this delay period, the Protect LED lights to confirm correct operation of the
protection circuitry.
Protect (PROT)
A lit Protect LED indicates that one of the integrated protections against thermal overload,
short-circuit … has been activated. The audio channels’ protection circuits operate independent from each other. At the occurrence of failure or overload conditions the
affected power amp channel is separated from the load connected via output relay,
preventing the connected loudspeaker systems and the power amplifier itself from
being damaged. Whatever caused the fault – e.g. a short-circuited speaker cable – needs
to be remedied. In case of thermal overload you have to wait until the power amplifier
automatically returns to normal operation.
Limiter
The Limit indicator lights as soon as the integrated dynamic limiter is being activated
and the power amp is driven at the clipping limit or generally at its maximum capacity.
Short-term blinking is not a problem, because the internal limiter trims input levels of up
to +21dBu down to a THD+N of approximately 1%. If, on the other hand, this LED lights
constantly, reducing the volume is strongly recommended to prevent the connected
loudspeaker systems from being damaged by probable overload.
Level Indication
The level indicators signify the power amplifier’s current modulation. The -30dB LED
starts lighting at approx. 30dB below full modulation while the -10dB LED lights at
approx. 10dB below full modulation. Shorted speaker cables or the activation of a
protection circuit causes these indicators to go out.
Power
The Power indicator lights when switching the power amplifier on. If the power on LED
does not light please check to make sure the unit is plugged in or that the primary
fuse is not blown. If the fuse is blown please contact an authorized service center.
5
REAR PANEL
Audio Signal Inputs
The electronically balanced inputs facilitate the connection of external signal sources
(e.g. mixing consoles). When screwed to the power amp, the screwlock connectors
provided with the unit prevent accidental disconnection.
Choosing balanced cables (2 conductors for audio signals + separate shielding mesh)
for LF-signal connection is generally recommended, even when the connected signal
source does not provide balanced output signals. This is possible by jointly connecting
“–” conductor and shield on the source side (also refer to “LF-Connection Cords).
Level Controls
The Level Controls allow setting the according power amp channel’s overall
amplification. To prevent distortion in mixing consoles connected to the amp, setting
these controls to a value between -6dB and 0dB is generally recommended. A scale
provides direct indication of the varying additional control attenuation applied to the fixed
internal amplification.
Mode Switch
The Mode Switch allows selecting the power amp’s mode of operation. With the fourchannel model it is possible to independently select channels A and B or C and D.
The single-channel model comes without mode switch.
DUAL:
The power amp channels work independently from each other, each reproducing the audio signals fed to the corresponding input.
PARALLEL: Both channels reproduce the audio signal fed to input A (or C). However,
using the level controls allows individually setting the channel volumes.
BDGD:
Audio signals need to be fed to channel A (or C) when in Bridged Mode.
Power amps A and B (or C and D) now work in push-pull operation
delivering doubled output voltage. Please keep in mind to correctly
connect the loudspeaker systems for Bridged Mode operation. (also refer
to “Loudspeaker Outputs”)
High Pass Filter (HPF)
The Hi-Pass filter allows effective attenuation of low bass audio signals. You can choose
from three cut-off frequency settings:
Power Amps with low impedance outputs
Power Amps with output transformer
300Hz, 12dB/Oct., BW
300Hz, 12dB/Oct., BW
50Hz, 12dB/Oct., BW
70Hz, 12dB/Oct., BW
OFF (no Hi-Pass filter)
50Hz, 18dB/Oct., BW
As a basic principle, all models with output transformer have a 50Hz Hi-Pass filter in the
audio signal path to protect the transformer from being driven into saturation by high
level low-frequency signals.
6
REAR PANEL
Loudspeaker Outputs
The speaker output jacks are suitable for connecting speaker cables with a maximum diameter of 2.5
mm2. The provided screwlock connectors can be screwed to the power amp to prevent inadvertent
disconnection. Power amps offer low impedance outputs and / or floating outputs (ISOLATED
OUTPUTS) with nominal voltages of 50V, 70V and 100V, depending on the amp model.
Caution: The symbol of a FLASH at the loudspeaker connectors indicates that these outputs
may carry high voltages which, when getting in contact with, can cause serious harm.
Establishing connections at these outputs is only permissible for persons who have
been instructed on how to do so. Otherwise use prefabricated cables only.
PA2450L & PA4150L
Loudspeaker systems connected to channels A and B (or C and D) have to be
connected according to the polarity indicated. Please, make sure to mind the
minimal impedance of 4 ohms per channel.
For bridged operation, the load has to be connected according to the BRIDGEDlabel and the Mode switch needs to be set to “Bridged”. Please, make sure to
keep in mind that in Bridged Mode the minimal impedance is 8 ohms and that
the input audio signal has to be fed to channel A (or C).
PA1250T, PA2250T & PA2400T
Integrated audio output transformers convert the power amp’s nominal output voltage to 50V, 70V and
100V. The amplifier models PA2250T and PA2400T present all voltages simultaneously at the floating
outputs so that the power amp channels can be used in any combination of possible output voltages.
Mixed operation of low-impedance speaker systems and floating loudspeaker lines on a single power
amp channel is possible as well.
The use of loudspeaker systems with 100V or 70V matching transformers to reduce the effects of cable
loss is recommended when the distance between power amp and speaker systems exceeds 165 feet.
In addition, this also facilitates distributing the output power among loudspeakers.
As many loudspeaker systems as possible can be connected, as long as the speaker network’s overall
power consumption does not exceed the power amp’s rated output power while at the same time not
falling below the nominal load impedance of the power amp outputs. Please refer to specifications in
the appendix for individual values of the rated output power and nominal load impedance of power amp
outputs.
100V
25W
100V
25W
100V
6W
100V
6W
16 x 25W
66 x 6W
Configuration example: PA2400T with 100V speaker systems connected.
Maximum working loads with 25W/100V and 6W/100V loudspeaker systems.
7
REAR PANEL
Mains Fuse
Under normal circumstance, the mains fuse blows only in the event of failure. When
replacing the fuse, make sure to use a fuse of the same type with identical amperage,
voltage and blow characteristics. If the mains fuse blows repeatedly, please contact an
authorized service centre.
Mains Socket
Please, make sure to check whether the voltage selector is set to the correct mains
voltage that matches the local mains supply at the installation site. An appropriate mains
cord is included in the package.
Caution: This appliance has no user serviceable parts inside. Leave servicing to
a qualified professional.
Voltage Selector
Sliding selector switch for switching between mains voltages 115V - 230V. Prior to
switching the mains voltage, make sure to replace the mains fuse with an appropriate
model. Please refer to the label on the rear of the enclosure indicating the correct values
for different mains voltages.
LF-connection cords
Choosing balanced cables (two conductors for audio signals plus separate shielding mesh) is
recommended for LF-signal connection. Although connecting unbalanced cables to the power amplifier
inputs is possible as well, using balanced cables is always preferable.
A great number of today’s audio appliances provide balanced outputs carried out via XLR-type
connectors. With balanced cabling, the shield interconnects all metal enclosure parts and therefore
efficiently eliminates the introduction of external interference – mostly noise and hum.
Wiring examples
amp input
connector
XLR-female
Cable to connect signal source with balanced XLR outputs.
amp input
connector
phone jack
Cable to connect signal source with unbalanced outputs.
8
MAINS OPERATION & RESULTING TEMPERATURE
Mains Operation
The following tables provide a useful(2)aid in determining power supply and cabling requirements. Column
“1/8 max. output power into 4 ohms ” states the values to be used for normal operation. These results
were measured with the power amplifier being operated at maximum output and a Pink Noise signal
according to EN60065 applied at the input, which approximately represents the strain of an audio signal
driving the power amp at maximum modulation.
Temperatures inside of the power amplifier
The power drawn from the mains network is converted into acoustic output to feed the connected
loudspeaker systems plus heat. The difference between drawn power and dispensed power is referred
to as leakage power or dissipation (PD). The amount of heat resulting from power dissipation might
remain inside of a rack-shelf and needs to be diverted using appropriate measures. The following table
is meant as auxiliary means for calculating temperatures inside of a rack-shelf system/cabinet and the
ventilation efforts necessary.
The column “PD” lists the leakage power in relation to different operational states. The column “BTU/hr”
shows the dispensed heat amount per hour.
PA2450L
idle
Umains
[V]
Imains
[A]
Pmains
[W]
Pout
[W]
PD
[W]
BTU/
hr(3)
28
0
28
96
230
0,2
Max. output power into 8ohms
(1)
230
5,4
923
2x300
323
1102
Max. output power into 4ohms
(1)
230
8,8
1605
2x480
645
2201
1/3 max. output power into 4ohms
(1)
230
5,6
953
2x160
633
2160
1/8 max. output power into 4ohms
(1)
230
3,7
598
2x60
478
1631
1/8 max. output power into 4ohms
(2)
230
3,2
530
2x60
410
1399
1/8 max. output power into 4ohms
(2) (4)
253
3,6
629
2x73
484
1651
230
3,2
550
2x48
454
1549
230
8,1
1482
2x450
582
1986
230
6,1
1065
2x225
615
2098
Umains
[V]
Imains
[A]
Pmains
[W]
Pout
[W]
PD
[W]
BTU/
hr(3)
230
0,4
54,7
0
55
187
230
3,9
653
4x100
253
863
Normal Mode (-10dB) into 4ohms
(1)
Rated output power (0dB, rated) into 4ohms
Alert-Mode (-3dB) into 4ohms
(1)
(1)
PA4150L
idle
Max. output power into 8ohms
(1)
Max. output power into 4ohms
(1)
230
6,3
1126
4x160
486
1658
1/3 max. output power into 4ohms
(1)
230
4,0
665
4x53
452
1541
1/8 max. output power into 4ohms
(1)
230
2,7
428
4x20
348
1187
1/8 max. output power into 4ohms
(2)
230
2,4
385
4x20
305
1041
1/8 max. output power into 4ohms
(2) (4)
253
2,6
450
4x24
353
1205
230
2,4
385
4x16
321
1095
230
6,1
1080
4x150
490
1638
230
4,6
790
4x75
490
1672
Normal Mode (-10dB) into 4ohms
(1)
Rated output power (0dB, rated) into 4ohms
Alert-Mode (-3dB) into 4ohms
(1)
(1)
(1)
Sine wave 1kHz
(2)
Pink noise acc. to EN60065
(3)
1BTU = 1055.06J = 1055.06Ws
(4)
10% mains over voltage
(5)
PD = Power dissipation
The following factors allow direct proportional calculation of the mains current (Imains) for different mains
supply voltages: 100V = 2,3; 120V = 1,9; 220V = 1,05; 240V = 0,96
9
MAINS OPERATION & RESULTING TEMPERATURE
PA2400T - 100V output
idle
Max. output power into 25ohms
(1)
Umains
[V]
Imains
[A]
Pmains
[W]
Pout
[W]
PD
[W]
BTU/
hr(3)
230
0,3
44,3
0
44
151
230
8,9
1643
2x430
783
2672
1/3 max. output power into 25ohms
(1)
230
5,5
952
2x143
665
2270
1/8 max. output power into 25ohms
(1)
230
3,7
602
2x54
495
1687
1/8 max. output power into 25ohms
(2)
230
3,3
545
2x54
438
1493
1/8 max. output power into 25ohms
(2) (4)
253
3,7
646
2x65
516
1760
230
3,3
540
2x43
454
1549
230
8,5
1550
2x400
750
2559
230
6,3
1119
2x200
719
2453
Umains
[V]
Imains
[A]
Pmains
[W]
Pout
[W]
PD
[W]
BTU/
hr(3)
230
0,2
31,6
0
32
108
Normal-Mode (-10dB) into 25ohms
(1)
Rated output power (0dB, rated) into 25ohms
Alert-Mode (-3dB) into 25ohms
(1)
(1)
PA2250T - 100V output
idle
Max. output power into 40ohms
(1)
230
5,5
960
2x270
420
1433
1/3 max. output power into 40ohms
(1)
230
3,5
571
2x90
391
1334
1/8 max. output power into 40ohms
(1)
230
2,3
365
2x34
298
1015
1/8 max. output power into 40ohms
(2)
230
2,1
330
2x34
263
896
1/8 max. output power into 40ohms
(2) (4)
253
2,3
385
2x41
303
1035
230
2,1
328
2x27
274
935
230
5,4
929
2x250
429
1464
230
4,0
668
2x125
418
1426
Umains
[V]
Imains
[A]
Pmains
[W]
Pout
[W]
PD
[W]
BTU/
hr(3)
230
0,2
21,7
0
22
74
Normal-Mode (-10dB) into 40ohms
(1)
Rated output power (0dB, rated) into 40ohms
Alert-Mode (-3dB) into 40ohms
(1)
(1)
PA1250T - 100V output
idle
Max. output power into 40ohms
(1)
230
2,8
487
1x270
217
740
1/3 max. output power into 40ohms
(1)
230
1,8
289
1x90
199
679
1/8 max. output power into 40ohms
(1)
230
1,2
182
1x34
148
506
1/8 max. output power into 40ohms
(2)
230
1,1
170
1x34
136
465
1/8 max. output power into 40ohms
(2) (4)
253
1,2
197
1x41
156
533
230
1,1
164
1x27
137
467
230
2,7
471
1x250
221
754
230
2,0
339
1x125
214
730
Normal-Mode (-10dB) into 40ohms
(1)
Rated output power (0dB, rated) into 40ohms
Alert-Mode (-3dB) into 40ohms
(1)
(1)
(1)
Sine wave 1kHz
(2)
Pink noise acc. to EN60065
(3)
1BTU = 1055.06J = 1055.06Ws
(4)
10% mains over voltage
(5)
PD = Power dissipation
The following factors allow direct proportional calculation of the mains current (Imains) for different mains
supply voltages: 100V = 2,3; 120V = 1,9; 220V = 1,05; 240V = 0,96
For power amp models with integrated transformers, the listed values for the 100V outputs are equally
applicable for the 70V, 50V and for the low-impedance outputs as long as the connected load is
equivalent as well.
10
32
�����
������
����� � �����
����� ��� ������
�����
����
�����
���� ����������
������
����� � �����
����� ��� ������
�����
����
�����
������ ����������
�����
�����
�����
�����
����
�����
�
���� �������
����
�
���� �������
�
������
������
����
����
����
�
����
����
����
������
����
����
���
����
�����
����
����
����
�������
��
��
�����
����
����
�������
��
��
�
�����
�����
�����
������
�����
�����
���
�
�����
�����
�����
�
������
������
���� � ������
���� � �����
������
���� �������
����
������
������
����
�
����
����
�������
����
����
����
����
���
����
�������
����
�
������
������
���
����
����
������
����
���
�
�����
�����
�����
������
�
�
����
����
������
����
��
����
�����
����
����
����
����
��
�����
�����
���� ����������
��� � �� � ��� �����
����
���
������ ����������
�
�����
�����
�����
�
������
������
���
�
����
����
������
���� � ������
���� � �����
������
���� �������
����
������
������
����
����
����
����
����
�������
����
����� ��� �� ���� � ����
����� ��������� ���� ������������ ���� ������� ��������� ������� �����
�������������
�
�
�
����
����
������
����
��
����
�����
����
����
����
����
��
��� ��������� �������� � ���� ����� ���� ��� ������ ������� ��������� �� ��� �� ���� �� ��� ������������
� ���� ����� ���� ��� ������� ��������� �� ��� �� ���� �� ��� ������������
���� ���������
������� ������� ������ �����
������� ����
����� ������ ����� ������� �����
��������� ���� ��� �����
���� ������ ������� ������ �����
����������������� �����
������� ������� ������ �����
������� ����
������� ��� ������� �����
������� ����
������� ����
�� ����
���� ����
�� ����
����� �����������
�� ������� ������ ������ ���� ����
����� �����������
�� ����� ������ ����� �� �������� ����
��� �� ����� ������ �����
���������� ����
���������
����� ����
�����
�������� �����
���������
���� ����� �� ��� ����� ������ �����
��������� ��������
����� ���� ����
����� ���������
������� ���� ����� ���� �����
����� ���������
���� ��� ������ ��������
������� ������
�� ����� � ����� ��
������ �� ����� �����
����������
����� ������������
����������
�������
������ �����
����������
�� � � � ��� ��
������
�
������
������
���
����
����
����
����
���
�����
�
�����
���
���
����
����
����
����
�
������
������
���� � ������
���� � �����
�
�����
�����
�����
���� �������
�
������
������
���
�
����
����
������
����
�������
���
������ ����������
����
������
������
����
����
����
����
����
����
TECHNICAL SPECIFICATIONS
BLOCK DIAGRAM PA2450L / PA4150L CH. A/B
33
BLOCK DIAGRAM PA4150L CH. C/D
34
BLOCK DIAGRAM PA2400T / PA2250T
35
BLOCK DIAGRAM PA1250T
36
DIMENSIONS
PA series amplifier dimensions in mm.
37
USA
Telex Communications Inc., 12000 Portland Ave. South, Burnville, MN 55337, Phone: +1 952-884-4051, FAX: +1 952-884-0043
Germany
EVI AUDIO, Hirschberger Ring 45, D 94315, Straubing, Germany Phone: 49 9421-706 0, FAX: 49 9421-706 265
Subject to change without prior notice.
Printed in Germany
www.electro-voice.de
40
10/08/2006 / 361 122